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2. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Example of the widely used Bourdon pressure gauge Checking tire pressure with a spring and piston tire-pressure gauge. Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area.

3. Drivers Not Benefiting from Drop in Oil Prices - AOL

   www.aol.com/2012/09/25/drivers-not-benefiting...

   AAA Fuel Gauge shows that the average price of a gallon of regular nationwide was $3.810, down. Despite a drop in oil prices that has taken Brent crude from just below $100 a barrel three weeks ...

4. Pressure - Wikipedia

   en.wikipedia.org/wiki/Pressure

   For gases, pressure is sometimes measured not as an absolute pressure, but relative to atmospheric pressure; such measurements are called gauge pressure. An example of this is the air pressure in an automobile tire , which might be said to be "220 kPa (32 psi)", but is actually 220 kPa (32 psi) above atmospheric pressure.

5. Orders of magnitude (pressure) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

   Air pressure in an automobile tire relative to atmosphere (gauge pressure) [citation needed] +210 to +900 kPa +30 to +130 psi Air pressure in a bicycle tire relative to atmosphere (gauge pressure) [57] 300 kPa 50 psi Water pressure of a garden hose [58] 300 to 700 kPa 50–100 psi Typical water pressure of a municipal water supply in the US [59]

6. Gasoline Prices Tick Higher

   www.aol.com/2012/10/03/gasoline-prices-tick-higher

   The drop in gasoline prices is over for now. The average per-gallon price of regular nationwide, according to the AAA Fuel Gauge, was $3.782, compared to $3.780 the day before and $3.805 a month ago.

7. Why $4 a Gallon Gas Wouldn't Last Long - AOL

   www.aol.com/news/2011-05-12-why-4-a-gallon-gas...

   Not long ago, everyone knew gas was going to reach $4 a gallon for regular on a nationwide basis soon. It was a lock -- a sure thing. Now, though, that sure thing is looking iffy: The AAA Fuel ...